Sample Preparation Laboratory-SPL
Presentation on the design features of the Sample Preparation Laboratory currently under review at MFC.
36 MATERIALS SCIENCE↗
Engineering topics
Meyer, Mitchell K
Publications and source records attributed to Meyer, Mitchell K.
Using Fission Fragment Damage to Advantage
Arguably the most critical component in the operation of fission energy systems is the nuclear fuel. It is also the most complex and least understood. Fuel materials are driven far from equilibrium by an extreme local environment of intense irradiation and high temperatures created by highly charged fission fragments generated with energy in the range of 70 to 100 MeV. In contrast to the elastic nuclear collisions of neutrons, energy deposition by these swift heavy fission ions is primarily due to electronic stopping; the kinetic energy of the ion is deposited over a range of 5 to 10 micrometers on a picosecond time frame and is then dissipated to the lattice through electron-phonon coupling. The net observable effect of the fission fragment interaction with the matrix is then determined by the material’s electronic structure, short and long range atomic structure and chemical composition as well as phase equilibria, local micro-structure and preexisting defects, and thermo-physical properties.
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS↗